Product Description:

The TDM7.1-015-300-W1 is a servo drive module manufactured by Bosch Rexroth Indramat and supplied within the TDM Servo Drive Modules series. The device conditions DC link power supplied by an external source and delivers controlled three-phase current to matched Indramat servo motors. In automated machinery, the module serves as the interface between the motion controller and the motor, regulating torque and speed with current-mode control to keep positioning cycles accurate under variable mechanical load.

The drive operates from a DC link of 300 VDC, and its power stage is rated for a continuous motor output of 4.5 kW. Current regulation remains linear because both the actual-value and setpoint amplifiers share a sensitivity of 0.500 V/A, so a 0.5-volt change corresponds to one ampere in the motor windings. Under steady load, the unit supplies a continuous armature current of 8 A, while control loops remain active down to a minimum commanded value of 1 A. For rapid acceleration or brief overloads, the power section can source up to 15 A peak. Internal conduction and switching generate 90 W of power loss that must be removed by cabinet airflow to maintain thermal limits. This output range suits closed-loop axes that require moderate torque in compact cabinets.

The control electronics draw 250 mA from the machine’s 24-volt auxiliary supply, and this value must be added to the logic power budget. The module tolerates ambient temperatures up to 55 °C and can be mounted at altitudes up to 1000 m without derating, making it suitable for most factory environments. A protection class of IP10 means the housing resists accidental finger contact, but it requires installation inside a closed panel. Mechanical integration is simplified by the 390 mm height, 128 mm width, and a mass of 6.5 kg, so the unit can be installed on standard DIN rail or back-plate positions alongside matching supply and filter modules.